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Definition of "first-hand information"
"Second-hand data" refers to the existing data that you collect, count, sort out and quote or refer to. For example, if you give a speech about the population of China and Hongkong, you go to the Census and Statistics Department "not because you have collected the existing data". On the contrary, "first-hand information" allows you to collect existing information.

Wenyuange Si Ku Quan Shu Online Edition (the probation period has expired) Stand-alone Edition (for use by Academia Sinica only) Online Edition:140.109.8.44: 8055/Stand-alone Edition: sinica.edu/%7Eetlib/4kinstall Si Ku Quan Shu Catalogue: Imperial Edition Catalogue of Si Ku Quan Shu. (The original website is dead, and this is the backup file provided by the WayBack machine.) The contents of the library's four books: 1972 to 1976, the photocopying library of Taiwan Province Commercial Press, without providing bookmarks, have some typos, such as "prison" changed to "yue". (The original website is dead. This is the backup file provided by WayBack Machine. ) Continuation of the Catalogue of Si Quan Shu: The Qing language from the Book Forest Reciprocating Forum. Four series (for the use of Academia Sinica only) sinica.edu/%7Eetlib/ Bibliography * * * CK/* * CK _ inst: Zhang Yuanji and other series 1980 Photocopyed by Shanghai Commercial Press, including sequel and three series. (The original website is dead, which provides backup files for the WayBack machine) List of Chinese Bibliography of Chinese Full-text Database of Institute of History and Language (2006/ 12/29) Update and query of Chinese Bibliography (planned and produced by Chinese Full-text Database of Institute of History and Language of Academia Sinica) ihp.sinica.edu/~sung/, Sinica.edu/~tdbproj/handy1/.data/files/hanjibio.xls (provided by Chinese group and merged by Mr. Yang Shihong, assistant of National Science Council) 140. 100 supports traditional Chinese character input query. The input word is a query dictionary. If two or more words match the author's entry (simplified Chinese characters are required), the content will be displayed, and then you can switch to the content of the Sinology website for inquiry. Two or more words are separated by spaces, which is an OR query. Gxbd/ (can be used only after registration) can be divided into five categories: classic, history, subject, collection and professional question bank, with ***3903 kinds. Search for God in the Sea (Beijing Airusheng Digital Technology Research Center, all rights reserved)-Classic/free reading of some full-text or pictures of ancient books, and full reading of ancient books for paying members. Soshen/ Dianhai's full-text retrieval supports logical operation, which can convert search words into simplified characters and associate them with variant characters. The full text obtained must be read by paying members. Compilation of historical materials of China stone carvings in past dynasties (for historical language use only) lib.ihp.sinica.edu/c/database/ikenrel/ikernel's stone inscriptions (all rights reserved by the National Library of China) 202.96.31.42: 9080/ROS/index includes Oracle Bone Inscriptions, bronzes and stone carvings in the National Map of Chinese mainland. Full-text retrieval (test) of kanji.zinbun.kyoto-u.ac.jp/db-machine/imgsrv/tak UHON/Tang and Song poems collected by the Institute of Humanities, Kyoto University (provided by the website of Chinese studies) gxbd/ Index full-song poetry analysis system (trial version) (all rights reserved by Peking University Data Analysis and Research Center) chinese.pku.edu/ SongPoem/ Ci of Whole Song Poetry (provided by Sinology website) Guo Xue /qsc/qscml 1 Poetry Library and Appreciation of Whole Tang, Song and Jin Dynasties (all rights reserved by Nanjing Normal University) 20438+0108.5438.58896 ID = 49 Tang and Song Literature and History Database (by Pdf contains rare and rare collections of Song Dynasty. In principle, ihp.sinica.edu/~sung/data/02/download/FAM1. "DBF" is an anthology that is not found in general series [such as four series], and it is the main memorial catalogue of famous ministers in past dynasties. Please download it first, and then open it with Access. Full text of the list of ruling and opposition projects (excerpted from Professor Wang Ruilai's History of China) salon.gooside/ tyouya1salon.gooside/leiyao Tongjian Topic (excerpted from Professor Wang Ruilai's History of China) Salon. Gooside/Tongjian Xixia Duanjin (all rights reserved by the National Library of China) 202. 96. 3/ Kloc-0/.42:9080/Wenxian/ contains the bibliography of Xixia ancient books, original drawings of ancient books and full-text databases of Xixia research papers collected by the National Library of China. Handa Library (for in-house use only, you can apply to this site for trial use outside the hospital, only IE is supported) (developed by Institute of Chinese Studies, China Ancient Books Research Center, Chinese University of Hong Kong, China) chant/scripts/member_login includes Oracle Bone Inscriptions, bronze inscriptions, bamboo slips and silks, pre-Qin and Han Dynasties, Wei, Jin, Southern and Northern Dynasties, etc., and Academia Sinica can use the first three. Yongle dadian (IE browsing only) (from Jilin education information network electronic library) jledu/book/skqsyl/ This Yongle dadian is composed of different versions of single volumes, including books of, Tianjin Xu, Jiang Anfu, New York,1June 1954, books of the Soviet Union, books of Cornell University and books of the Oriental Department Library of Leningrad University. Compared with the books in Fu Sinian Library, there are also some missing volumes. You can use Ctrl+F to retrieve.